Finding the Fourth Proportional to 2,234.78, 3,083.78 and 1,240.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.78 : 3,083.78 = 1,240.04 : x
2. Step 2: Convert to fraction form
   2,234.78/3,083.78 = 1,240.04/x
3. Step 3: Cross multiply
   2,234.78x = 3,083.78 × 1,240.04
4. Step 4: Simplify right side
   2,234.78x = 3,823,988.93
5. Step 5: Solve for x
   x = 3,823,988.93/2,234.78
6. Step 6: Final answer
   x = 1,711.12